Nut-wrench.



G. l. SPRAGUE.

NUT mamma, Y APPLIOAIION FILED SEPTJI. 1907. f

Patented sept. 15, 190s.

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i i i GEORGE e. srRaGUE, 0E ARLINGTON, MASSACHUSETTS. j

NUT-WRENCH. g Y

Specification of Letters Patent.

`Application filed September 11, 1907. Serial No. 392,387.

To all iriom it ma 1/ concern:

. Be it known that I, GEORGE I. SPRAGUE, a citizen of the United States,residing at the town of Arlington, in the county of Middle.-

sex and State of Massachusetts, have invented new and usefulImprovements in Nut- IYi-eiiches, of which the following is aspeciticatio'n.

This invent ion relates generally to wrenches having a handle-bar,carrying at. one end a head having a socket-member suitable to engage orinterlock with a nut, bolt-head, etc., and so engaged to secure theturning of the nut, etc., hy rotating said handle and more especiallyitrelates to that classA of such wrenches as have said head hung upon thelliandlc-bar for it and the handle to be placed axially as to each otherin varying relations, that is, so as to have both axes eitlici in a linecoincident with, or in lines at an angle to cach other, according asniayAbe required in the use of the wrench, and in whatever position thetwo, handle-hai' and socket-head,

may be to secure they turn of the mit, etc., as desired, h v rotatingt-lie handle-har.

The object. of this invent-ion is to construct the socket-member and thehead to which it is to be attached so that the socket-member can beattached and detached at pleasure and attached he so held as to insureits turning as the liandle-bar and head are rot-ated. '.lhis object iscarried ont by a relative construction and arrangementof thesocket-member and its carrying-head, all as hereinafter particularlydescribed and stated in the claim.

In the drawings, forming part of this specification, this invention isillust-rated. A

Figures 1 and 2 are elevations at adjacent sides of the wrench. Fig. 3is a. tace view of the socket-member. Fig. 4 is a cross section, ondotted line 4-4 of Fig. 2, and shows the socket-member as partialljdrawn out of the head. Fig. 5 is a longitudinal section, in part, ondot-ted line 5-5 of Fig. 1.

In the drawings, A is the handle-bai', and B is a cross-arm at one endof said bar and which end has holes through it to receive said arm intwo directions at right angles to each other, C is the head carrying thesocket-meinber D. This head C has a lug-projection E which is enteredbetween parallel ear-pieces F of the handle-bar, at the. opposite endthereof to that carrying the cross-arm B, and so entered, it is hung soas to freely turn, on a fixed cross-pin G of said` ear-pieces F. The

socket-member D has a socket I-I shaped to engage orto interlock with aiiut, bolt-head,

, l\w rammed sept. 15, 1908.

ctc., and so engaged when rotated to turn said nut, etc.. Thesocket-member D and head C carrying it are joined together and thesocket-member D held on the head by a. diametrimilly ruiming dovetailedtongue and groove construction K oi the. two, which construction tapersfrom end to end, Fie'. 4, wlierehy, as is plain, the socket-member canbe attached to and detached from the head, so that a socket-member witha socket of any desired dimension can be used, all as nia-y be desired,and with the socket-member attached and forced to aclose joint with thehead obviously the socket-nieinher will be made most secure againstaccidental detachment as the wrench is used.

As is plain from the above description the handle-bar and head carryingthe socketinember can be placed as may be required either in axialcoincidentiines, oi' in lines at an angle tol each other as well knownin wrenches ol" this particular class, and further, under thisinvent-ion, the socket-member is free for ready attachment anddetachment so that socket-members having ditferent sized sockets can besubstituted as may be desired, and it is this feature of the wrench` asdescribed which constitutes this invention. The tongue and groove Ktaper from end to end as shown, Fig. 4.

Having thus described my invention what I claim and desire to secure byLetters Pat; ent is,

A wrench for nuts, bolt-heads, and such like, which comprises a barhaving, at one end, a handle and, at its other end, a. head hnngf`thereon so that it ma)v be axially placed at dilt'erent angles relativeto the axis of said hai', and which is in two separable parts or members]oined together by a tongue and groove. that tapers from end to endrelative to the axis of the head and one of' which parts has a socket toengage the nut, etc.

In witness whereof, I have hereunto set my hand in the presence of twosubscribing witnesses. A

K GEO. I. SPRAGUE 'WitnessesJ ALBERT W. BROWN, CHARLES R. BROWN.

